package com.example.wwk.graduationpractice.Globalutils;

import android.graphics.Bitmap;
import android.graphics.BitmapFactory;
import android.graphics.Canvas;
import android.graphics.PixelFormat;
import android.graphics.drawable.BitmapDrawable;
import android.graphics.drawable.Drawable;

import java.io.ByteArrayInputStream;
import java.io.ByteArrayOutputStream;
import java.io.InputStream;

/**
 * Created by wwk on 2017/3/27.
 * 格式转化工具
 */

public class FormatTools {
        private static FormatTools tools = new FormatTools();

        private FormatTools() {
        }

        public static FormatTools getInstance() {
            if (tools == null) {
                tools = new FormatTools();
                return tools;
            }
            return tools;
        }

        // 将byte[]转换成InputStream
        public InputStream Byte2InputStream(byte[] b) {
            ByteArrayInputStream bais = new ByteArrayInputStream(b);
            return bais;
        }

        // 将InputStream转换成byte[]
        public byte[] InputStream2Bytes(InputStream is) {
            String str = "";
            byte []readByte = new byte[1024];
            int readCount = -1;
            try {
                while ((readCount = is.read(readByte,0,1024)) != -1) {
                    str += new String(readByte).trim();
                }
                return str.getBytes();
            } catch (Exception e) {
                e.printStackTrace();
            }
            return null;
        }

        // 将Bitmap转换成InputStream
        public InputStream Bitmap2InputStream(Bitmap bm) {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            bm.compress(Bitmap.CompressFormat.JPEG, 100, baos);
            InputStream is = new ByteArrayInputStream(baos.toByteArray());
            return is;
        }

        // 将Bitmap转换成InputStream
        public InputStream Bitmap2InputStream(Bitmap bm, int quality) {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            bm.compress(Bitmap.CompressFormat.PNG, quality, baos);
            InputStream is = new ByteArrayInputStream(baos.toByteArray());
            return is;
        }
        // 将InputStream转换成Bitmap
        public Bitmap InputStream2Bitmap(InputStream is) {
            return BitmapFactory.decodeStream(is);
        }

        // Drawable转换成InputStream
        public InputStream Drawable2InputStream(Drawable d) {
            Bitmap bitmap = this.drawable2Bitmap(d);
            return this.Bitmap2InputStream(bitmap);
        }

        // InputStream转换成Drawable
        public Drawable InputStream2Drawable(InputStream is) {
            Bitmap bitmap = this.InputStream2Bitmap(is);
            return this.bitmap2Drawable(bitmap);
        }

        // Drawable转换成byte[]
        public byte[] Drawable2Bytes(Drawable d) {
            Bitmap bitmap = this.drawable2Bitmap(d);
            return this.Bitmap2Bytes(bitmap);
        }

        // byte[]转换成Drawable
        public Drawable Bytes2Drawable(byte[] b) {
            Bitmap bitmap = this.Bytes2Bitmap(b);
            return this.bitmap2Drawable(bitmap);
        }

        // Bitmap转换成byte[]
        public byte[] Bitmap2Bytes(Bitmap bm) {
            ByteArrayOutputStream baos = new ByteArrayOutputStream();
            bm.compress(Bitmap.CompressFormat.PNG, 100, baos);
            return baos.toByteArray();
        }

        // byte[]转换成Bitmap
        public Bitmap Bytes2Bitmap(byte[] b) {
            if (b.length != 0) {
                return BitmapFactory.decodeByteArray(b, 0, b.length);
            }
            return null;
        }

        // Drawable转换成Bitmap
        public Bitmap drawable2Bitmap(Drawable drawable) {
            Bitmap bitmap = Bitmap
                    .createBitmap(
                            drawable.getIntrinsicWidth(),
                            drawable.getIntrinsicHeight(),
                            drawable.getOpacity() != PixelFormat.OPAQUE ? Bitmap.Config.ARGB_8888
                                    : Bitmap.Config.RGB_565);
            Canvas canvas = new Canvas(bitmap);
            drawable.setBounds(0, 0, drawable.getIntrinsicWidth(),
                    drawable.getIntrinsicHeight());
            drawable.draw(canvas);
            return bitmap;
        }

        // Bitmap转换成Drawable
        public Drawable bitmap2Drawable(Bitmap bitmap) {
            BitmapDrawable bd = new BitmapDrawable(bitmap);
            Drawable d = (Drawable) bd;
            return d;
        }
}